Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual cidade de licença possui um sinal de chamada wriq?
 ###Tabelas: CREATE TABLE night_series_winners_1977–1987 (night_series_winners_1977–1987_id AUTO_INCREMENT PRIMARY KEY, Year INT, Winners VARCHAR, Grand Finalist VARCHAR, Scores VARCHAR, Venue VARCHAR, Crowd INT, Margin INT, Season Result VARCHAR) CREATE TABLE list_of_protected_forests (list_of_protected_forests_id AUTO_INCREMENT PRIMARY KEY, Central Forest Reserve VARCHAR, Size in km² INT, Total plant species INT, Tree species INT, Endemic INT, Threatened (CR,VU,EN) INT) CREATE TABLE doubles:_12_6–6 (doubles:_12_6–6_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Date VARCHAR, Tournament VARCHAR, Surface VARCHAR, Partner VARCHAR, Opponents VARCHAR, Score VARCHAR) CREATE TABLE freight_and_mail (freight_and_mail_id AUTO_INCREMENT PRIMARY KEY, Year INT, Domestic freight INT, Domestic mail INT, International freight INT, International mail INT, Total freight and mail INT, Change VARCHAR) CREATE TABLE radio_iq_full_power_affiliates (radio_iq_full_power_affiliates_id AUTO_INCREMENT PRIMARY KEY, Call sign VARCHAR, Frequency MHz INT, City of license VARCHAR, ERP W VARCHAR, Class VARCHAR, FCC info VARCHAR)  
SELECT City of license FROM radio_iq_full_power_affiliates WHERE Call sign = wriq